Safety-cock for gas-burners.



. M. JAKoBsoN.v SAFETY COCK FOB GAS BUBNEBS.

APPLIOATION FILED `JUNE 24, 1908. Y

Patented Apr. 20, 1909.

l, NNN@ f MAX JAKoBsoN, or NEW YORK, N. Y.

SAFETY-CGCK FOR GS-URNERS.

Specification of Letters Patent.

Patented Apr-n 2o, 1909.

Application mea :une 24, 190s. serial N6. 44ans.

To all rwhom it may concern:

Be it known that I, MAX JAKosoN, a citii zen ofthe United States of America, residing at New York, in the borough of Manhattan, county and State of New York, have invented certain new and useful Improvef ments in Safety-Cocks for Gas-Burners, of which the following is a specification.

This invention relates to certain improvef ments in the. safety gas-cock for which Letters-Patent were granted to me on October 29, '1901,N0. 685,612.

'It was found by practical tests that the safety gas-cock referred to was'not simple enough for being produced at a low price nor effective enough for practical use, for the reason that the spring-actuated locking pin by which the plug was looked in position, and which was operated by a pivoted lever when turning the plug, was not reliable enough in operation.

The object of this invention is to improve the safety gas-cock referred to and make it in such a manner that the same is locked in a reliable manner when the plug is closed so as' to prevent the accidental opening of the same and the dangerous escape of gas, while it permits the easy and reliable operation of .the gas-cock when opening and closing the same; and for this purpose` tie invention consists in the novel construction to be hereafter described and claimed.

In the accompanying drawings, Fi urel represents a side-elevation of a gasxture or bracket with my improved safety-gascoc'k, Fig. 2 is a longitudinal section through the same, drawn on a larger scale, and Fig. 3 is a longitudinal section on line 3, 3, Fig. 2.

Similar letters of reference indicate cor res onding parts.

eferring to the drawings, A represents a suitable gas-fixture or bracket provided with the usual burner or with a nipple for applying a gas-hose. Tur-ning within the bearingsleeve e of the gas-Fixture A is arranged the usual rotary plug C of the gas-cock, which plug is provided with anoperating key or handle C1 and with a transverse passage C2 through which the gas may pass to the burner when the gas-cock is placed in open position. To the plug C is pivoted by 'means of a pin l a small'nger-lever D so that its one end extends into a recess or notch d1 .in/ the stock of the gas-fixture or bracketywhlle the other end is formed in the shapeof a Jhandle and located near the handle-C1L of the lug C' so vas to permit the handle-end of of the handle C1 and turning the plug for admitting gas to the burner. The fulcrumed finger-lever D is acted on by a helical spring e, which is arranged below the pivot in a socket c* in the turning handle of thev gascock. The notch al is formed at the edge of and directly below said notch the ulcrumed pin. d. Immediately below the pivot d the socket e1 is yformed in the plug, and this socket holds the helical spring e which ex# tends at one end over a projection dx formed integral with the lever D at its inner. edge below the pivot.v At its lower part the lever D is bent at right angles to the upper portion of the same, so as to form aithumbpiece, whichv extends alongside the key or handle of the plug .parallel to the latter.

The upper end o the plug is seated in the "socket or stock of the gas-fixture or bracket and tightly held therein by means ot' a that the proper degree of friction is exerted on the gascock so as to permit 'the tight fitting and closing o'f the same, as shown in Fig.l 1. The rim of the stock or socket for the plug is provided at one side, adjacent to bracket is attache to the service-pipe, with a recess against which a pin p, that is screwed into the shank of the plug, abuts in opening or closing the cock in the usual manner. At the opposite side of the stock of the. gas-fixture is arranged the notch or lever projects when the plug is 1n closed position so as to prevent the passage of the same and escape of gas through the gasixture or bracket.

By taking hold of thel handle of the lug 'with the finger and the'handle-end ofp the finger-lcver b .the thumb and pressing the tlie notch or recess Z1 inthe stock or socket 'of the gas-fixture so as to permit the turning of the plug and the placing of the same in open position, with the handles in line with the longitudinal axis of the gas-fixture or bracket, as customary when yopening a gascock.. When the plu is in open position the end` of the ngerr ver rests on theA rim the lower open end of the bearinfrsleeve a lever D is pivoted by means of its transverse washer 7', screw-'nut f1 and jam-nut f2 so recess d1 into which the end of the ingerand hold the plug in locked position soas to prevent the accidental opening of the handles toget er, the lever'is released from l the ever D to be depressed when taking hold 1 the screw-socket b whichpthe gas-fixture or of the stock or socket of the gas-fixture or bracket, ready-for returning the end of the lingenlever into tbe notch di when the gais cool; is turned in closed position. When closing the gus-cook the finger-lever avutonnltieally engages wvitli'tlie, notehor recess it" in the plug and prevents the accidental opening of the oook und escape of gas through the same.

Having thus described my invention, I eluini as new and desire to secure by Lett-ers lzttent:

The combina-tion with e gas-fixture or bracket having e bearing-sleeve open at its lower end and provided at its lower edge! with a notch, of a plug turning in said bearing-sleeve and provided with a key or handle und a socket out laterally in the plug above seid handle, a transverse plvotz pin mounted in the plug immediately above said socket, a lever fulruined intermediate of its length on seid pivot pin and bent intermediately to form two portions which extend at right angles to each other, the upper portion extending into said notoli of the bearing-sleeve and the lower portion extending alongside and parallel with the plug-handle, a projectioniormed on said lever at its inner edge opposite said socket immediately below the pivot pin, und a helieal spring seated in said socket and fitting over said projection.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing Witnesses.

M.\X JAKOBSON. 

